CN107699783A - A kind of aluminium molybdenum high temperature resistant nodular cast iron of the element containing chromium-copper and preparation method thereof - Google Patents
A kind of aluminium molybdenum high temperature resistant nodular cast iron of the element containing chromium-copper and preparation method thereof Download PDFInfo
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- CN107699783A CN107699783A CN201710789361.2A CN201710789361A CN107699783A CN 107699783 A CN107699783 A CN 107699783A CN 201710789361 A CN201710789361 A CN 201710789361A CN 107699783 A CN107699783 A CN 107699783A
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- 229910001141 Ductile iron Inorganic materials 0.000 title claims abstract description 16
- ZXTFQUMXDQLMBY-UHFFFAOYSA-N alumane;molybdenum Chemical compound [AlH3].[Mo] ZXTFQUMXDQLMBY-UHFFFAOYSA-N 0.000 title claims abstract description 14
- ZTXONRUJVYXVTJ-UHFFFAOYSA-N chromium copper Chemical compound [Cr][Cu][Cr] ZTXONRUJVYXVTJ-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 238000002360 preparation method Methods 0.000 title claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 94
- 239000012535 impurity Substances 0.000 claims abstract description 29
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 17
- 239000010949 copper Substances 0.000 claims abstract description 14
- 229910052802 copper Inorganic materials 0.000 claims abstract description 13
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 10
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 10
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 8
- 229910052742 iron Inorganic materials 0.000 claims description 43
- 229910045601 alloy Inorganic materials 0.000 claims description 19
- 239000000956 alloy Substances 0.000 claims description 19
- 238000005266 casting Methods 0.000 claims description 14
- 239000011777 magnesium Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- 238000011081 inoculation Methods 0.000 claims description 11
- 229910000519 Ferrosilicon Inorganic materials 0.000 claims description 10
- 239000004411 aluminium Substances 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 239000004576 sand Substances 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 229910052749 magnesium Inorganic materials 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 229910000604 Ferrochrome Inorganic materials 0.000 claims description 5
- 108010038629 Molybdoferredoxin Proteins 0.000 claims description 5
- 229910018619 Si-Fe Inorganic materials 0.000 claims description 5
- 229910008289 Si—Fe Inorganic materials 0.000 claims description 5
- HBELESVMOSDEOV-UHFFFAOYSA-N [Fe].[Mo] Chemical compound [Fe].[Mo] HBELESVMOSDEOV-UHFFFAOYSA-N 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 229910021419 crystalline silicon Inorganic materials 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 5
- 238000007499 fusion processing Methods 0.000 claims description 5
- 235000019580 granularity Nutrition 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 5
- 230000006698 induction Effects 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229910001018 Cast iron Inorganic materials 0.000 abstract description 18
- 238000007254 oxidation reaction Methods 0.000 abstract description 12
- 230000035939 shock Effects 0.000 abstract description 3
- 230000002262 irrigation Effects 0.000 abstract 1
- 238000003973 irrigation Methods 0.000 abstract 1
- 229910052748 manganese Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 description 11
- 239000011651 chromium Substances 0.000 description 10
- 230000003647 oxidation Effects 0.000 description 9
- 229910000859 α-Fe Inorganic materials 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 239000010439 graphite Substances 0.000 description 5
- 229910002804 graphite Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 229910001562 pearlite Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 230000003026 anti-oxygenic effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 241001168730 Simo Species 0.000 description 1
- BWAIFBWLVBSYOY-UHFFFAOYSA-N [Mg][Mo][Fe] Chemical compound [Mg][Mo][Fe] BWAIFBWLVBSYOY-UHFFFAOYSA-N 0.000 description 1
- 230000002942 anti-growth Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/10—Cast-iron alloys containing aluminium or silicon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/08—Making cast-iron alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/04—Cast-iron alloys containing spheroidal graphite
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/06—Cast-iron alloys containing chromium
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention discloses a kind of aluminium molybdenum high temperature resistant nodular cast iron of element containing chromium-copper, its drip irrigation device is that each component percentage by weight of this cast iron is：C 1.4 3.6%, Si 1.5 5.2%, Al 2.0 9.0%, Mo 0.3 3.0%, Cr 0.5 2.5%, Cu 0.3 1.5%；Impurity element Mg≤0.06%, S≤0.06%, P≤0.15%, Mn≤0.7%, remaining is Fe.The present invention is intended to provide a kind of aluminium molybdenum high temperature resistant nodular cast iron of element containing chromium-copper, can be resistant to 900 DEG C of operating temperatures, has good thermal shock resistance properties, pyro-oxidation resistance, formability good and cheap.
Description
Technical field
The present invention relates to cast iron materials field, more specifically, it relates to a kind of aluminium molybdenum high temperature resistant ball of element containing chromium-copper
Black cast iron.
Background technology
With the development of automobile engine technology, gas exhaust temperature more and more higher, the exhaust pipe of engine, turbocharger
The operating temperature of housing brings up to more than 800 DEG C, and conventional gray cast iron, ductile iron material can not meet resistant to elevated temperatures requirement.
Such as SiMo heat-resisting ductile irons/compacted iron of in the market, it is used for volute and the heat resisting temperature of blast pipe product only has 760 DEG C；Low aluminium is compacted
Ink/magnesium iron operating temperature is below 750 DEG C, and oxidation resistance at high temperature is poor.
And the cast iron of this high-temperature work environment requirement, cast steel material can be met at present, in actual use and process,
There are the following problems：Ni-resist cast iron（D5S）, due to containing more than 30% precious metal nickel, and material cost is high；Resistance to height
Warm ferritic stainless steel, containing the alloying elements cr for having more than 15%, cost is higher, in addition the casting technique processability of stainless steel
Difference, manufacturing cost are high；Aluminium silicon spheroidal graphite cast-iron is resistant to 900 DEG C of operating temperature, but fragility is larger, and raising aluminium content can improve heat-resisting
Property and high temperature oxidation stability, but aoxidize serious in melting and casting process, its casting character can seriously be deteriorated；Aluminium molybdenum magnesium iron/compacted iron
900 DEG C of operating temperature is resistant to, room-temperature property is good, but its high-temperature oxidation is weaker.
To sum up, how a kind of cast iron materials are provided, there is good antioxygenic property, resistance to elevated temperatures and high temperature impact resistance
Performance, good casting, machining forming property, and cost is more cheap, is the skill that those skilled in the art remain unsolved
Art problem.
The content of the invention
In view of the deficienciess of the prior art, it is an object of the invention to provide a kind of aluminium molybdenum high temperature resistant of element containing chromium-copper
Spheroidal graphite cast-iron, it can be resistant to 900 DEG C of operating temperatures, have that good thermal shock resistance properties, pyro-oxidation resistance, formability are good,
It is and cheap.
To achieve the above object, the invention provides following technical scheme：A kind of aluminium molybdenum high temperature resistant ball of the element containing chromium-copper
Black cast iron, each component percentage by weight are：C 1.4-3.6%, Si 1.5-5.2%, Al 2.0-9.0%, Mo 0.3-3.0%, Cr
0.5-2.5%, Cu 0.3-1.5%；Impurity element Mg≤0.06%, impurity element S≤0.06%, impurity element P≤0.15%, impurity
Element M n≤0.7%, remaining is Fe.
Preferably, each component percentage by weight is：C3.6%, Si1.5%, Al9.0%, Mo0.3%, Cr0.5%, Cu0.3%；
Impurity element Mg≤0.06%, impurity element S≤0.06%, impurity element P≤0.15%, impurity element Mn≤0.7%, remaining is
Fe。
To achieve the above object, the present invention also provides a kind of preparation side of the aluminium molybdenum high temperature resistant nodular cast iron of element containing chromium-copper
Method, comprise the following steps：
A. dispensing melting, alloy is configured according to above-mentioned target component, in the medium-frequency induction furnace of 500 kilograms of normal capacity in plus
Enter 150 kilograms of foundry iron, 150 kilograms of steel scrap, after metal molten, by adding industrial ferrosilicon, industrial molybdenum-iron, ferrochrome, copper
Silk reaches above design composition, technical pure aluminium ingot is added by bell jar plunging, in dispensing fusion process, it is contemplated that C has 5%
The scaling loss of left and right, inoculation process below can increase Si, increase the control of Si amounts the 1.0% of total molten iron, to ensure subsequent treatment Si
It is not exceeded, and ensure that it reaches design component requirements by C-Si analyzers and direct-reading spectrometer, detection alloy composition；
B. molten iron discharging, nodularization and inoculation, molten iron is handled using spheroidising tundish, adds 3.6 kilograms of common magnesium nodularizations
Agent (Mg-Si-Fe), 1.2 kilograms of inovulants, nodulizer and inovulant are placed in tundish reative cell, inovulant will cover
Cover molten iron when preventing from coming out of the stove on nodulizer and directly wash away nodulizer, at 1520 DEG C, molten iron discharging, using ladle bottom pouring process,
First go out 2/3 molten iron, question response goes out remaining 1/3 molten iron again after tending to be steady；
C. subcontract, pour, after spheroidising, subcontracted, surface scum is removed during subcontracting, then poured in tide mould sand gravity
Poured into a mould under the conditions of note, carried out in casting process using the FeSi75 ferrosilicon of 1-4mm granularities by 0.4% addition with stream
It is pregnant.
The present invention has compared with prior art：
（1）Relative to conventional cast iron material, graphite exists with balled form in spheroidal graphite cast-iron, and the effect of isolating to matrix is weak, tool
There are good normal temperature and high-temperature behavior, performance has good dimensional stability under the high temperature conditions close to steel.
（2）In the cast-iron alloy：Carbon（C）It is most strong promotion graphite element, rational C content, can has cast iron
There are good casting character and machinability；Silicon（Si）It is to promote graphite element, element silicon can form one in Cast Iron Surface
The fine and close SiO of layer2Oxide-film, the further oxidation of material can be resisted；A certain amount of aluminium is added in cast iron（Al）, can be in height
Temperature is lower to produce Al 2O3Diaphragm, so as to prevent further to aoxidize；Molybdenum（Mo）Element can promote ferrite to be formed, few
The addition of Mo elements is measured, the tensile strength and yield strength of ferrite cast iron can be obviously improved；Chromium（Cr）Element, it is a small amount of to add
Cast iron can refine pearlite and graphite, improve the stability of pearlite, can improve the antioxygenic property of cast iron and anti-growth
Energy；A small amount of copper（Cu）Element adds and inoculation, can improve the room-temperature mechanical property of low-chromium cast-iron.
（3）Essential element in the cast-iron alloy（C, Si, Al, Cu）It is all conventional alloying element, material simply easily takes；
All within 3%, its cost is far below the nickelic high temperature resistant ductile iron of nickeliferous (Ni) more than 30% and containing chromium (Cr) 15% Cr, Mo content
Ferrite heat-resistance stainless steel above, and the alloy is cast iron quality, and its casting character and machinability are better than ferrite
Stainless steel, manufacturing cost are low.
（4）The present invention has substantial progress and wide commercial application prospect, in limited raising cost of alloy
In the case of, the high-temperature behavior and high-temperature oxidation resistance of alloy are greatly improved, and there is good preparation processability and synthesis
Mechanical property.
（5）Under the conditions of tide mould sand gravity-assist pouring, as-cast structure is using ferrite as matrix, and graphite nodule rate >=85%,
It can be resistant to 900 DEG C of operating temperatures, have that good thermal shock resistance properties, pyro-oxidation resistance, formability are good, and price is low
Honest and clean, Alloy At Room Temperature tensile strength is more than 560Mpa, elongation is more than 5%, and under the conditions of 900 DEG C, tensile strength is more than 45MPa,
Elongation after fracture is more than 60%, and the average oxidation speed under the conditions of 900 DEG C is less than 0.02g.m-2.h-1), there is good be cast as
Type performance.
Embodiment
Embodiment 1：
A kind of aluminium molybdenum high temperature resistant nodular cast iron of element containing chromium-copper, each component percentage by weight are：C 1.4%, Si 5.2%, Al
2.0%, Mo 0.9%, Cr 0.5%, Cu 1.5%；Impurity element Mg≤0.06%, impurity element S≤0.06%, impurity element P≤
0.15%, impurity element Mn≤0.7%, remaining is Fe.Its specific preparation process is：
A. dispensing melting, alloy is configured according to above-mentioned target component, in the medium-frequency induction furnace of 500 kilograms of normal capacity in plus
Enter 150 kilograms of foundry iron, 150 kilograms of steel scrap, after metal molten, by adding industrial ferrosilicon, industrial molybdenum-iron, ferrochrome, copper
Silk reaches above design composition, technical pure aluminium ingot is added by bell jar plunging, in dispensing fusion process, it is contemplated that C has 5%
The scaling loss of left and right, inoculation process below can increase Si, increase the control of Si amounts the 1.0% of total molten iron, to ensure subsequent treatment Si
It is not exceeded, and ensure that it reaches design component requirements by C-Si analyzers and direct-reading spectrometer, detection alloy composition；
B. molten iron discharging, nodularization and inoculation, molten iron is handled using spheroidising tundish, adds 3.6 kilograms of common magnesium nodularizations
Agent (Mg-Si-Fe), 1.2 kilograms of inovulants, nodulizer and inovulant are placed in tundish reative cell, inovulant will cover
Cover molten iron when preventing from coming out of the stove on nodulizer and directly wash away nodulizer, at 1520 DEG C, molten iron discharging, using ladle bottom pouring process,
First go out 2/3 molten iron, question response goes out remaining 1/3 molten iron again after tending to be steady；
C. subcontract, pour, after spheroidising, subcontracted, surface scum is removed during subcontracting, then poured in tide mould sand gravity
Poured into a mould under the conditions of note, carried out in casting process using the FeSi75 ferrosilicon of 1-4mm granularities by 0.4% addition with stream
Breed.
Application effect：The present embodiment Alloy At Room Temperature tensile strength, yield strength, elongation under the conditions of tide mould sand gravity-assist pouring
Rate is respectively 570Mpa, 6.0%, under the conditions of 900 DEG C, tensile strength 70MPa, and elongation after fracture 65%, under the conditions of 900 DEG C
Average oxidation speed 0.018g.m-2.h-1), there is good casting forming function, the as cast condition of material is ferrite, Oxygen potential
87%, cast form is functional, and under as cast condition, engine cylinder-body is made, and more than 900 DEG C under operating temperature, reaching design will
Ask, engine installation works well.
Embodiment 2：
A kind of aluminium molybdenum high temperature resistant nodular cast iron of element containing chromium-copper, each component percentage by weight are：C 3.6%, Si 1.5%, Al
9.0%, Mo 0.3%, Cr 0.5%, Cu 0.3%；Impurity element Mg≤0.06%, impurity element S≤0.06%, impurity element P≤
0.15%, impurity element Mn≤0.7%, remaining is Fe.Its specific preparation process is：
A. dispensing melting, alloy is configured according to above-mentioned target component, in the medium-frequency induction furnace of 500 kilograms of normal capacity in plus
Enter 150 kilograms of foundry iron, 150 kilograms of steel scrap, after metal molten, by adding industrial ferrosilicon, industrial molybdenum-iron, ferrochrome, copper
Silk reaches above design composition, technical pure aluminium ingot is added by bell jar plunging, in dispensing fusion process, it is contemplated that C has 5%
The scaling loss of left and right, inoculation process below can increase Si, increase the control of Si amounts the 1.0% of total molten iron, to ensure subsequent treatment Si
It is not exceeded, and ensure that it reaches design component requirements by C-Si analyzers and direct-reading spectrometer, detection alloy composition；
B. molten iron discharging, nodularization and inoculation, molten iron is handled using spheroidising tundish, adds 3.6 kilograms of common magnesium nodularizations
Agent (Mg-Si-Fe), 1.2 kilograms of inovulants, nodulizer and inovulant are placed in tundish reative cell, inovulant will cover
Cover molten iron when preventing from coming out of the stove on nodulizer and directly wash away nodulizer, at 1520 DEG C, molten iron discharging, using ladle bottom pouring process,
First go out 2/3 molten iron, question response goes out remaining 1/3 molten iron again after tending to be steady；
C. subcontract, pour, after spheroidising, subcontracted, surface scum is removed during subcontracting, then poured in tide mould sand gravity
Poured into a mould under the conditions of note, carried out in casting process using the FeSi75 ferrosilicon of 1-4mm granularities by 0.4% addition with stream
Breed.
Application effect：The present embodiment Alloy At Room Temperature tensile strength, yield strength, elongation under the conditions of tide mould sand gravity-assist pouring
Rate is respectively 590Mpa, 5.6%, under the conditions of 900 DEG C, tensile strength 70MPa, and elongation after fracture 72%, under the conditions of 900 DEG C
Average oxidation speed 0.017g.m-2.h-1), there is good casting forming function, the as cast condition of material is ferrite, Oxygen potential
90%, cast form is functional, and under as cast condition, engine cylinder-body is made, and more than 900 DEG C under operating temperature, reaching design will
Ask, engine installation works well.
Embodiment 3：
A kind of aluminium molybdenum high temperature resistant nodular cast iron of element containing chromium-copper, each component percentage by weight are：C 3.0%, Si 3.8%, Al
5.0%, Mo 3.0%, Cr 2.5%, Cu 1.5%；Impurity element Mg≤0.06%, impurity element S≤0.06%, impurity element P≤
0.15%, impurity element Mn≤0.7%, remaining is Fe.Its specific preparation process is：
A. dispensing melting, alloy is configured according to above-mentioned target component, in the medium-frequency induction furnace of 500 kilograms of normal capacity in plus
Enter 150 kilograms of foundry iron, 150 kilograms of steel scrap, after metal molten, by adding industrial ferrosilicon, industrial molybdenum-iron, ferrochrome, copper
Silk reaches above design composition, technical pure aluminium ingot is added by bell jar plunging, in dispensing fusion process, it is contemplated that C has 5%
The scaling loss of left and right, inoculation process below can increase Si, increase the control of Si amounts the 1.0% of total molten iron, to ensure subsequent treatment Si
It is not exceeded, and ensure that it reaches design component requirements by C-Si analyzers and direct-reading spectrometer, detection alloy composition；
B. molten iron discharging, nodularization and inoculation, molten iron is handled using spheroidising tundish, adds 3.6 kilograms of common magnesium nodularizations
Agent (Mg-Si-Fe), 1.2 kilograms of inovulants, nodulizer and inovulant are placed in tundish reative cell, inovulant will cover
Cover molten iron when preventing from coming out of the stove on nodulizer and directly wash away nodulizer, at 1520 DEG C, molten iron discharging, using ladle bottom pouring process,
First go out 2/3 molten iron, question response goes out remaining 1/3 molten iron again after tending to be steady；
C. subcontract, pour, after spheroidising, subcontracted, surface scum is removed during subcontracting, then poured in tide mould sand gravity
Poured into a mould under the conditions of note, carried out in casting process using the FeSi75 ferrosilicon of 1-4mm granularities by 0.4% addition with stream
Breed.
Application effect：The present embodiment Alloy At Room Temperature tensile strength, elongation under the conditions of tide mould sand gravity-assist pouring are respectively
625Mpa, 6%, under the conditions of 900 DEG C, tensile strength 65MPa, elongation after fracture 61%, the average oxidation under the conditions of 900 DEG C
Speed 0.019g.m-2.h-1), there is good casting forming function, the as cast condition of material is ferrite, adds a small amount of pearlite, ball
Rate 92%, cast form is functional, and under as cast condition, engine cylinder-body is made, and more than 900 DEG C under operating temperature, reaches design
It is required that engine installation works well.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (3)
1. the aluminium molybdenum high temperature resistant nodular cast iron of a kind of element containing chromium-copper, it is characterised in that each component percentage by weight is：C 1.4-
3.6%, Si 1.5-5.2%, Al 2.0-9.0%, Mo 0.3-3.0%, Cr 0.5-2.5%, Cu 0.3-1.5%；Impurity element Mg≤
0.06%, impurity element S≤0.06%, impurity element P≤0.15%, impurity element Mn≤0.7%, remaining is Fe.
A kind of 2. aluminium molybdenum high temperature resistant nodular cast iron of element containing chromium-copper according to claim 1, it is characterised in that each component
Percentage by weight is：C3.6%, Si1.5%, Al9.0%, Mo0.3%, Cr0.5%, Cu0.3%；Impurity element Mg≤0.06%, impurity
Element S≤0.06%, impurity element P≤0.15%, impurity element Mn≤0.7%, remaining is Fe.
3. the preparation method of the aluminium molybdenum high temperature resistant nodular cast iron of a kind of element containing chromium-copper, it is characterised in that comprise the following steps：
A. dispensing melting, alloy is configured according to above-mentioned target component, in the medium-frequency induction furnace of 500 kilograms of normal capacity in plus
Enter 150 kilograms of foundry iron, 150 kilograms of steel scrap, after metal molten, by adding industrial ferrosilicon, industrial molybdenum-iron, ferrochrome, copper
Silk reaches above design composition, technical pure aluminium ingot is added by bell jar plunging, in dispensing fusion process, it is contemplated that C has 5%
The scaling loss of left and right, inoculation process below can increase Si, increase the control of Si amounts the 1.0% of total molten iron, to ensure subsequent treatment Si
It is not exceeded, and ensure that it reaches design component requirements by C-Si analyzers and direct-reading spectrometer, detection alloy composition；
B. molten iron discharging, nodularization and inoculation, molten iron is handled using spheroidising tundish, adds 3.6 kilograms of common magnesium nodularizations
Agent (Mg-Si-Fe), 1.2 kilograms of inovulants, nodulizer and inovulant are placed in tundish reative cell, inovulant will cover
Cover molten iron when preventing from coming out of the stove on nodulizer and directly wash away nodulizer, at 1520 DEG C, molten iron discharging, using ladle bottom pouring process,
First go out 2/3 molten iron, question response goes out remaining 1/3 molten iron again after tending to be steady；
C. subcontract, pour, after spheroidising, subcontracted, surface scum is removed during subcontracting, then poured in tide mould sand gravity
Poured into a mould under the conditions of note, carried out in casting process using the FeSi75 ferrosilicon of 1-4mm granularities by 0.4% addition with stream
Breed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710789361.2A CN107699783B (en) | 2017-09-05 | 2017-09-05 | Aluminum-molybdenum high-temperature-resistant nodular cast iron containing chromium and copper elements and preparation method thereof |
Applications Claiming Priority (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018128674A1 (en) * | 2017-11-16 | 2019-05-16 | HappyProduct Inc. | Cast iron material |
| CN112680649A (en) * | 2020-12-07 | 2021-04-20 | 安徽省隆兴铸造有限公司 | Nodular cast iron for valve casting and preparation method thereof |
| CN115505829A (en) * | 2022-09-16 | 2022-12-23 | 宁国市天天耐磨材料有限公司 | Nodular cast iron jack and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040091383A1 (en) * | 2001-05-16 | 2004-05-13 | Suzuki Motor Corporation | Ferrite-based spheroidal graphite cast iron and exhaust system component using the same |
| CN101899609A (en) * | 2010-08-31 | 2010-12-01 | 卫辉熔金高温材料有限责任公司 | Heat-resistant spherical graphite cast iron for steel ladle slide gate mechanism slide and processing method thereof |
| CN104928563A (en) * | 2015-06-17 | 2015-09-23 | 邵阳富鑫实业有限公司 | Heat-resistant ductile iron resistant to aluminum liquid oxidation and manufacturing method thereof |
| CN105779858A (en) * | 2016-03-14 | 2016-07-20 | 银峰铸造（芜湖）有限公司 | As-cast high-strength ductile iron and preparation method thereof |
-
2017
- 2017-09-05 CN CN201710789361.2A patent/CN107699783B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040091383A1 (en) * | 2001-05-16 | 2004-05-13 | Suzuki Motor Corporation | Ferrite-based spheroidal graphite cast iron and exhaust system component using the same |
| CN101899609A (en) * | 2010-08-31 | 2010-12-01 | 卫辉熔金高温材料有限责任公司 | Heat-resistant spherical graphite cast iron for steel ladle slide gate mechanism slide and processing method thereof |
| CN104928563A (en) * | 2015-06-17 | 2015-09-23 | 邵阳富鑫实业有限公司 | Heat-resistant ductile iron resistant to aluminum liquid oxidation and manufacturing method thereof |
| CN105779858A (en) * | 2016-03-14 | 2016-07-20 | 银峰铸造（芜湖）有限公司 | As-cast high-strength ductile iron and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 王秀生等: ""高铝耐热球铁护板的铸造工艺实践"", 《铸造设备与工艺》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018128674A1 (en) * | 2017-11-16 | 2019-05-16 | HappyProduct Inc. | Cast iron material |
| DE102018128674B4 (en) | 2017-11-16 | 2022-02-03 | HappyProduct Inc. | Use of a cast iron material |
| CN112680649A (en) * | 2020-12-07 | 2021-04-20 | 安徽省隆兴铸造有限公司 | Nodular cast iron for valve casting and preparation method thereof |
| CN115505829A (en) * | 2022-09-16 | 2022-12-23 | 宁国市天天耐磨材料有限公司 | Nodular cast iron jack and preparation method thereof |
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| CN107699783B (en) | 2020-01-24 |
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Effective date of registration: 20200701 Address after: Group 34, Yalu village, Huangjing Town, Taicang City, Suzhou City, Jiangsu Province Patentee after: Nasiway Technology (Suzhou) Co., Ltd Address before: No. 32, Zhongyuan Road, No. 10, Yangpu District, Shanghai City, Shanghai Patentee before: Wang Yeshuang |